AP PHOTOS: Lunar show illuminates world's skies

A girl plays with a dog as a perigee moon, also known as a supermoon, rises in Madrid, Sunday, Aug. 10, 2014. The phenomenon, which scientists call a perigee moon, occurs when the moon is near the horizon and appears larger and brighter than other full moons. (AP Photo/Andres Kudacki)

People around the world this weekend looked up at the sky to view a lunar phenomenon: the supermoon.

Known to scientists as a perigee moon, Earth's neighbor appears at its largest and brightest compared to other full moons when it orbits closer to our planet. It can even be seen during the daytime.

A supermoon will happen three times this year, with Sunday night's sky show the second. The first one occurred on July 12 and the third will take place on Sept. 9.